Burner cleaner



an 27 T. LONGSTAFF BURNER CLEANER Filed April 6. 1925 gwm antoz the manner in which the device may be at- Patented Jan. 4, 192?.

'TfEEOI/IA LONG STAFF, OF ROUNDUP, MONTANA.

BURNER CLEANER.

Application filed April 6, 1925. Serial No; 21,160.

This invention relates to an improved burner cleaning device particularly designed foruse in cleaning the burners of miners carbide lamps, and seeks, among otherobjects, to provide a simple and convenient device of this character whereby the gas duct of a burner may be easily and quickly cleaned.

The invention seeks, as a further object, to provide a device having means whereby the device may be readily centered on the burner tip and alined with respect to the gas duct thereof so that the device may be operated to clean said duct without the necessity for the use of a light in locating the duct.

And the invention seeks, as a still further object, to provide a device wherein the cleaning needle employed may be readily'renewed.

Qther and incidental objects will appear hereinafter.

in the accom aanying drawings:

Figure 1 is a perspective view showing tached to a miners coat or the like so as to be conveniently carried.

Figure 2 is a vertical sectional view through the device and showing the device positioned on a burner tip.

Figure 3 is an enlarged detail perspective view of the cleaning needle employed.

In carrying the invention into effect, I employ a barrel provided at one end with an enlarged annular head 11 and screwed into the barrel at its opposite end is a sleeve 12 having a flange 13 overhanging the barrel so that said flange may be grasped for removing the sleeve. Fixed in the forward end of the barrel is a plug 14 apertured centrally and provided with an upstanding nipple 15 extending axially of the barrel. At their forward ends, the head 11 and plug 1 1 are recessed to define a conical locating socket 16 and the aperture of the plug opens into this socket axially thereof. Slidable through the sleeve 12 is a plunger 17 provided at'its outer end with a cleaning point 17 and fixed to the plunger at the base of the said cleaning point is a disc 18, the periphery of which is preferably knurled so that the plunger may be readily rotated. Formed in the inner end of the plunger is an axial socket 19 and received at its inner end in said socket is a cleaning needle 20 detachably secured by a set screw 22. As

housed and protected within .the nipple of 4 the plug. Formed .in the plunger 17 near its inner end, is an opening 24. As previ ously intimated, the present device is par tlcularly intended for use by miners and, as

suggested in Figure 1, the opening 24 in the plunger is provided to receive the prongof a safety pin, as conventionally illustrated.

at, 25,,so that the device may be readily pinned to a miners coat, for instance, .as conventionally illustrated at 26. device may be carried in a readily accessible position and, in this connection, it is to be noted that the prong of the safety pin will limit the plunger 17.:igainst movement into the barrel 10 so that the cleaning needle 20 cannot be accidentally projected at the forward end of the barrel to inflict injury.

in Figure 2 of the drawings, Ihaveshown the manner in which. the device is positioned over the burner tip of a miners carbide lamp for cleaning the gas duct of the tip, the tip being conventionally illustrated at 27. The tip is formed with the usual gas passage 28 at the outer-end of which is a cavity 29. To clean the tip, the miners lamp is held in one hand and the device grasped in the other hand, when the socket 16 at the forward end of the barrel 10 is positioned over the tip. By then pressing doWnwardly on the plunger 17 with the thumb, so that the point of the needle 20 is brought to the apex of said socket and turning the needle back and forth by rotating the disc 18, the cavity 29 of the tip may be readily located, when the plunger is further depressed to force the cleaning needle through the duct 28. Thus, by a reciprocation of the plunger, so that the cleaning needle will be caused to travel back and forth through the duct, as well as by rotating the needle, foreign particles in the duct may be readily dislodged and the duct thoroughly cleaned. As shown, the burner tips of miners carbide lamps are usually rounded at their outer ends and the presence of the socket 16 at the forward end of the barrel to seat the rounded end of the tip, therefore, tends Thus, the

of the spring.

to render the device self-centering. Accordingly, after the barrel is positioned against the tip, the gas duct of the tip may be readily located with the cleaning needle. When the needle becomes dull, the sleeve 12 is removed from the barrel 10, when the plungor 17 may be withdrawn to permit the removal of the needle. Thus, the needle may be readily renewed at any time and, in this connection it is to be observed that the nipple 15 of the plug 14 not only serves as a guide for the free end of the needle but also serves as a stop to coact with :the inner end of the plunger 17 for limiting the plunger in its inward movement into the barrel and preventing the full compression When the plunger is thus depressed the spring 23 will, of course, be

compressed about said nipple so that injury to the spring will be avoided. The clean ing point 17 at the outer endlof the plunger is provided for cleaning the cavity 29 of the burner tip. As will be seen, by inverting the device, said cleaning point may be directed into the cavity for scraping the wall of the cavity and throwing out any particles dislodged.

Having thus described the invention, what I claim is:

1. A burner cleaner including a barrel provided at its forward end with a head, a plug fixed in the forward end of the barrel, the plug and said head being provided with a socket for centering the, barrel on a burner tip, a sleeve engaged with the opposite end of the barrel, a plunger slidable through said sleeve, a cleaning needle carried by the plunger and shiftable thereby through said plug into the gas duct of said tip, and means acting on the plunger for normally holding the needle retracted within the barrel.

2. A burner cleaning device including a barnel, a plunger reciprocable therein and projecting at its outer end at the rear end of :the barrel, the plunger being provided at its outer end with .a cleaning point, and a cleaning element carried by the inner end of the plunger, :the plunger being depressible at its outer end for projecting said element at the forward end of the barrel into ;a burner duct.

A burner cleaning device including a barrel, a plunger slidable in the barrel and projecting at its router end at the rear end of the barrel, a cleaning element carried by the inner end of the plunger, a plug engaged in the forward end of the barrel and provided with an opening freely accommodating said element as 'well as with an upstanding nipple to freely surround said .eleanent, and a spring interposed between the plug and plunger dior normally holding the plunger retracted, the plunger being movable forwardly to projectsaid element into :a burner duct and being engageable with said nipple to be limited thereby in its forward movement.

In testimony whereof I afliX my signature.

THOMAS nonesrarr. 11. 3. 

